guest thank you steve. caller: when we come back, author donald green joins us with his book entitled "third party matters". but first a look at the issues and topic the on the sunday morning program, all of which can be heard on c-span radio and with that, nancy callo in the c-span studios. >> today, the focus, campaign 2012 and the upcoming presidential debates, appearing on several of the shows today, new jersey republican governor chris christie, c-span radio reairs those programs with meet the press, david gregory welcomes christie and david plouffe, along with raffle reid of the faith and freedom coalition, at 1:00, we replay abc's this week, guests include governor christie, white house adviser david plouffe and haley barbour and howard dean. at 2:00 p.m., fox news sunday, chris wallace sits down with republican vice presidential nominee paul ryan. cnn state of the union follows at 3:00 p.m. eastern, with host candy crowley, her guests include republican senators john mccain and roy blunt, maryland d